Welcome to the new Schneider Electric Community

It's your place to connect with experts and peers, get continuous support, and share knowledge.

  • Explore the new navigation for even easier access to your community.
  • Bookmark and use our new, easy-to-remember address (community.se.com).
  • Get ready for more content and an improved experience.

Contact SchneiderCommunity.Support@se.com if you have any questions.

Close
Invite a Co-worker
Send a co-worker an invite to the Exchange portal.Just enter their email address and we’ll connect them to register. After joining, they will belong to the same company.
Send Invite Cancel
84755members
354187posts

Anyway to use rack power distribution unit application apis from an angular front end?

APC UPS Data Center & Enterprise Solutions Forum

Schneider Electric support forum for our Data Center and Business Power UPS, UPS Accessories, Software, Services, and associated commercial products designed to share knowledge, installation, and configuration.

Solved
agalu129_apc
Ensign
Ensign
0 Likes
8
695

Anyway to use rack power distribution unit application apis from an angular front end?

This was originally posted on APC forums on 12/7/2020


Hi there,

I'm working on an application that will be able to control power switches located on the rack power distribution unit application. Is there anyway to whitelist my angular front end application so that i can make post and get requests to the rack power distribution unit application apis? I tried calling the apis but keep getting an "No Access-Control_Allow-Headers" error. I looked further into this and it seems my frontend requires a nmc object key that is used in the endpoint. (e.g http://xxx.xx.xxx.xx/NMC/kQtlr8AEz8bRMchJ73RGiA/home.htm . But I'm not sure on how to retrieve this key as I assume this key is retrieved when logging into the application. I also tried calling the login apis first but still get Access-Control-Allow-Headers errors. Any help would be great.

 


Accepted Solutions
BillP
Administrator Administrator
Administrator
0 Likes
0
698

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This reply was originally posted by Gavan on APC forums on 12/22/2020


That's not really how SNMP works.

The commands are standard for all SNMP devices the only thing that changes is the target OID and the value set. The list of OIDs associated with the PDUs can be found in the Powernet MIB. (Like I said you'd need to be familiar with SNMP)

-Gavan

See Answer In Context

8 Replies 8
BillP
Administrator Administrator
Administrator
0 Likes
0
697

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This reply was originally posted by Gavan on APC forums on 12/8/2020


I don't think this method is supported but for what your trying to accomplish I'd recommend using either an SSH script that will log-in and run the command to control the outlets or using SNMP to turn the outlets on or off.

-Gavan

agalu129_apc
Ensign
Ensign
0 Likes
0
697

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This was originally posted on APC forums on 12/10/2020


I've opted to use a nodejs server to that communicates with the pdu whenever my web app makes a request. The nodejs server will send ssh commands to the pdu. I was wondering though if there is any documentation on what ssh commands I can use to communicate with the pdu to login, turn on/off switches?

 

Thanks for the help,

Albert

BillP
Administrator Administrator
Administrator
0 Likes
0
697

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This reply was originally posted by Gavan on APC forums on 12/11/2020


The easiest way is to log into the PDU via SSH and then issue the ? command, some commands are slightly different for different units and firmwares:

apc>?

System Commands:
---------------------------------------------------------------------------
For command help: command ?

? about alarmcount boot bye cd
clrrst console date delete dir dns
eapol email eventlog exit firewall format
ftp help lang lastrst ledblink logzip
netstat ntp ping portspeed prompt pwd
quit radius reboot resetToDef session smtp
snmp snmptrap snmpv3 system tcpip tcpip6
user userdflt web whoami xferINI xferStatus

Device Commands:
---------------------------------------------------------------------------
alarmList bkLowLoad bkNearOver bkOverLoad bkReading bkPeakCurr
bkRestrictn devLowLoad devNearOver devOverLoad devReading devPeakLoad
devStartDly dispID humAlGen humLow humMin humHyst
humReading humStatus lcd lcdBlink logToFlash olAssignUsr
olCancelCmd olDlyOff olDlyOn olDlyReboot olGroups olName
olOff olOffDelay olOn olOnDelay olRbootTime olReboot
olStatus olUnasgnUsr phLowLoad phNearOver phOverLoad phReading
phPeakCurr phRestrictn prodInfo sensorName tempAlGen tempHigh
tempMax tempHyst tempPeak tempReading tempStatus userAdd
userDelete userList userPasswd

apc>olOff ?
Usage: olOff -- Turn an outlet or group of outlets off.
The id# may be from 1 up to 32 depending on NPS group size.
olOff [:]

 

-Gavan

agalu129_apc
Ensign
Ensign
0 Likes
0
698

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This was originally posted on APC forums on 12/14/2020


Thanks for the response Gavan. Do you know if the rack pdus generate a privateKey that I can use to ssh and authenticate myself into the pdu?

agalu129_apc
Ensign
Ensign
0 Likes
0
697

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This was originally posted on APC forums on 12/14/2020


Also where can i find this private key once sshed into the rack pdu?

BillP
Administrator Administrator
Administrator
0 Likes
0
698

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This reply was originally posted by Gavan on APC forums on 12/15/2020


The SSH implementation doesn't support key authentication, you'll need to provide a user name and password.

If you want an easier to implement option the I still recommend SNMP, this command will turn of outlet 1 immediately: 

(Easier in terms of implementation, you'd need to understand how SNMP works first undecided

snmpset -v 1 -c public 192.168.0.1 1.3.6.1.4.1.318.1.1.12.3.3.1.1.1 i 2

-Gavan

agalu129_apc
Ensign
Ensign
0 Likes
0
697

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This was originally posted on APC forums on 12/16/2020


Thanks I will probably use SNMP instead then. Where can I see the commands I can use for SNMP? Can't seem to find any instruction in the documentation for the Rack PDUs. Also would I be able to authenticate into the PDUs with just a username and password because that is all I have access to at the moment?

BillP
Administrator Administrator
Administrator
0 Likes
0
699

Re: Anyway to use rack power distribution unit application apis from an angular front end?

This reply was originally posted by Gavan on APC forums on 12/22/2020


That's not really how SNMP works.

The commands are standard for all SNMP devices the only thing that changes is the target OID and the value set. The list of OIDs associated with the PDUs can be found in the Powernet MIB. (Like I said you'd need to be familiar with SNMP)

-Gavan